.right_nav {
	position: fixed;
	top: 50%;
	right: 0;
	height: 220px;
	margin-top: -110px;
	box-shadow: -2px 2px 8px #ddd;
	z-index: 999; 
}

.right_nav li {
	position: relative;
	text-align: center;
}

.right_nav a {
	display: block;
	margin: 0 16px;
	width: 32px;
	height: 55px;
}

.right_nav li:last-child a {
	border-bottom: 0;
}

.right_nav img {
	width: 18px;
	height: 18px;
	color: #eff3f3;
	position: relative;
	top: 16px;
	left: 8px;
	display: block;
}

.right_nav .right_img3 {
	width: 20px;
	height: 22px;
}

.right_nav .right_img4 {
	width: 20px;
	height: 20px;
}

.right_nav .right_span {
	position: absolute;
	left: 16px;
	top: 8px;
	width: 30px;
	height: 30px;
	font-size: 13px;
	display: none;
}

.right_nav .line {
	display: block;
	width: 32px;
	height: 1px;
	background-color: #eff3f3;
	position: absolute;
	top: 54px;
	left: 16px;
}
.right_nav li:hover .right_span {
	display: block;
}

.right_nav li:hover img {
	display: none;
}